Window construction



March 17, 1953 w. B. BURKE WINDOW CONSTRUCTION Filed se it. 28, 1946 R m m m OJ'ILBUR a. s uz/cs BY M '7 afiowevs.

Patented Mar. 17, 1953 UNITED STAT A'E'ENT OFFICE 4 Claims.

In my prior application Serial No. 659,274 which has become Patent No. 2,561,677, issued October 16, 1951, of which this is a continuationin-part, there is set forth a construction permitting double glazing and a sash guide insertable in new or old window frame openings. By the present invention, further improvements and refinements and conveniences in the sash guide may be had and effective sealing and locking between sashes. Other advantages in detail will be apparent from the following description.

To the accomplishment of the foregoing and related ends, the invention, then, comprises the feature hereinafter fully described, and particularly pointed out in the claims, the following description and the annexed drawing setting forth in detail certain illustrative embodiments of the invention, these being indicative, however, of but a few of the various ways in which the principle of the invention may be employed.

In said annexed drawing:

Fig. 1 is an inside front elevational view of construction in accordance with the present invention;

Fig. 2 is a detail elevation, partly in section and on larger scale, showing the sash guide;

Fig. 3 is a detail section on a plane substantially indicated by line III-III, Fig. 1, on a large scale;

Fig. 4 is a detail section on plane substantially indicated by line IV-IV, Fig. 1;

Fig. 5 is a fragmentary perspective view of a combined sealing locking means; and

Fig. 6 shows a fragmentary perspective view of the corner of the sash guide.

In the present construction again, there is involved generally a relation between slideable upper and lower sashes U, L, and a sash guide S. The sashes may be double glazed with panes g, and stop-guide means may be provided either as conventionally between the upper and lower sashes or preferably as the tongues 2 on the sashes and grooves 3 inthe sash guide. The sash guide is insertable in new or old windowframe openings, and stops 4 and- 5 may be provided therefor. The sash guide may be free from both stops, or may be secured to the inner stop 5 if preferred. The stop 5 may be hinged as at '6 to the window frame, desirably a piano-hinge being employed. And the sash guide may be secured to the stop by a hinge 1, again preferably a piano-hinge, and thereby additional conveniences of swinging and making the assemblage accessible inside the room for cleaning, etc., is had.

In detail construction, the sash guide may have its rail and stile members hollow and formed of channel-shape pieces 8, 81, with flanges lapping and secured. The rails and one stile of the guide may be provided with angle strips 9 which are continuous across the joints, and which may be spot welded. For facilitating placement and removal of sashes within the sash guide, the remaining stile is equipped with screws 12 swiveled or rotatable in the stile and screw threaded into lugs is fastened to the rails, and thus an accu-- rate take-up in the assembly of the guide is assured, while on the occasion of displacement of the removable stile for insertion or removal of sashes, the entire operation is simple and quickly accomplished. The side flanges of the inner and outer channel of the rails may be extended square as at 16, as additional aligning means for the assembly of the displaceable stile with the rails.

In order to prevent collection of condensate water, with attendant detriment, as would otherwise be prone to occur in the hollow metal members exposed to uneven temperature and moisture conditions, the hollow sash guide is provided with ventilating openings which may be at convenient locations at the inside. Conveniently they may be openings 12 in its general plane, and in the rail members top and bottom at their ends, as indicated more particularly in Figs. 2 and 6, thereby giving direct access to the interior of the joint. By leaving an adequate clearance of a small fraction of an inch at the top and bottom of the sash guide at the room-side only, e. g. not over a quarter of an inch, a thermosiphonic circulation of air fram the room proceeds up from the lower openings 12 and out the top openings back to the room. Uniform conditions may thus be attained.

At the joint between the sliding sashes, combined sealing and locking means is provided, and this involves a transversely slideable element l5, such as a narrow plate generally oo-extensive with the top rail of the lower sash. By suit-able mounting, such as slots Hi and retaining means, the element l5 may be transversely slid into position with its edge I! engaging under the upper sash, as shown in full lines in Fig. 4. In this position, it may be locked by tightening the thumb screw-s I8. One or more of these may be employed in the retaining means, and the remaining screws may be of simple-headed type as at 19 and requiring no manipulation. As indicated, the edge 11 of the transversely slideable element 15 is desirably offset from the main plane, and is relatively narrow, so that when retracted as shown in the dotted line portion in 'Fig. 4, the sashes may be moved relatively to each other. Thumb lugs 20 facilitate the adjusting of the slide element. To ensheath and protect the edge I! of the slide, the cover-strip 2| secured along one edge 22 to the upper edge is ofiset at its other edge sufiiciently to allow the sliding insertion of the edge I! of the locking member. Desirably, a slight wedging incline of the oo-acting surf-aces may be provided. Integral or attached lift-lugs 25 on the lower part of the lower sash facilitate raising and lowering thereof.

With windows equipped as described, it is seen that sliding sashes may be independently manipulated as desired, and the inter-sash joint may be sealed and securely locked even against efforts at loosening from the outside by prying implements. Cleaning or changing of sashes is also particularly convenient, as the entire assembly may be swung inwardly or may be taken out, and access to all parts is direct and convenient Other modes of applying the principle of the invention may be employed, change being made as regards the details described, provided the features stated in any of the following claims or the equivalent of such be employed.

I therefore particularly point out and distinctly claim as my invention:

1. In window construction, upper and lower sashes, a sash-guide therefor hinge-mounted at one side and having hollow rails and stiles each formed of opposed channel pieces secured together, providing means closed to the weatherside, and also providing means for exposing the interior of rail-stile joints and for providing at top and bottom inside ventilation at the roomside, including a vertical air passway in a stile open at bottom and top through the room-side, the rail-ends being formed with cut-back web openings and extending flanges lapping with adjacent stile ends, lugs in the rails and screws swivelled in the tiles and threadedly engaging the lugs.

2. In window construction, upper and lower sashes, a sash-guide therefor hinge-mounted at one side and having hollow rails and stiles each formed of opposed channel pieces secured together, providing means closed to the weatherside, and providing means for exposing the interior of rail-stile joints at the top and bottom and for inside ventilation at the room-side, including a vertical air passway in a stile that is open at bottom and top through the room-side, the rail-ends having openings at the ends of their webs, and extending flanges lapping with adjacent stile-ends, and take-up screws extending between the stile ends and the rail-ends engaging lugs 0n the rail-ends for drawing such rail-ends and stile-ends together.

3. In window construction, upper and lower sashes, a sash guide therefor having hollow rails and stiles formed of channel pieces providing means closed to the weather-side but open at the room-side at top and bottom for inside ventilation at the room-side and providing accessible stile-joints to permit insertion and removal of sashes, including a vertical air passway in a stile that i open at bottom and top to the room-side, the rail-ends having openings in their channel webs, and extending flanges coacting with adjacent stile-ends, and take-up means for drawing such rail-ends and stile-ends together.

4. In window construction, hollow rails and stiles providing an air passway closed against ventilation at the weather-side, providing means for ventilation to the room-side exclusively and for permitting partial disassembly, said means including openings in the rails at point below and above a stile, with stile ends telescoping at right angles with the ends of the flanges of the rails which project leaving an intervening opening, a lug on the rail, and a take up screw extending from the stile to said lug.

WILBUR B. BURKE.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 505,889 Stroud Oct. 3, 1893 539,975 Carey May 28, 1895 802,458 Lee Oct. 24, 1905 834,968 Christensen Nov. 6, 1906 1,136,785 Fair Apr, 20, 1915 1,192,406 Fair July 25, 1916 1,242,815 Kohler Oct. 9, 1917 1,256,046 Schroyer Feb. 12, 1918 1,432,640 Szalai Oct. 17, 1922 1,664,016 Ballner Mar. 27, 1928 1,876,486 Britten Sept. 6, 1932 2,126,381 Gagnier Aug. 9, 1938 2,264,020 Dautrick et a1. Nov. 25, 1941 2,297,091 Wells ,Sept. 29, 1942 

